It's called a cave system. They are quite common.
There are even more systems that are connected hydrologically although with no humanly-passable links.
Wookey Hole, at the foot of the Mendip Hills in SW England is one such example. It discharges the River Axe whose tributaries are several major caves on the hills above it; and despite efforts over many decades and continuing, no-one has yet found a cavers' route from the sink caves to the resurgence; nor between the feeder caves.
A cave system.
Both are stream-courses - though cave passages lose their streams eventually - so they display both erosion and deposits. Many erosion forms found in caves are not seen in surface water-courses, though roughly-similar meandering canyons, waterfalls, pot-holesand knick-pointsare common to both.
That's not an easy or obvious question to answer. The world's deepest cave is Voronya or Krubera Cave, in the Urals I think? but it's not ever so long. Caves like that plunge steeply via many shafts linked byrelatively short horizontal passages. The world's longest cave is the Flint Ridge Cave/ Mammoth Cave system, linking severals other caves too with a total of somewhere near 400 miles of passages; but I don't think its vertical range (as cave depths are oftenmore accurately described) is ever so great. Incidentqally its name has nothing to with Pleistocene animals. "Mammoth" was the adjective for the large passages near its main entrance. (ref: Wikipedia) In the UK, Ogod Ffynon Ddu, in South Wales, has a VR of just over 1000feet in its 28 miles of passages; I think the Three Coutnies System in NW England beats it indepth and length but it's not easy tryingto find this sort of information thanks to the Internet!
Because Limestone rock is a awesome type of rock that creates caves.
There are many spectacular caves, known and not-so-well known throughout Australia. The Nullarbor Plain is a spelunker's paradise. A list of the better known caves can be found at the related link below.
A cave system.
Kentucky have so many dry place and no ocean
Oh yes! Most caves in limestone (most caves in fact) are formed by water and very many still hold the streams that are in fact still developing them. Such caves are called "active". Some are completely full of water and explorable only by specialised cave-divers. Caves or cave passages that have lost their formative streams are called "fossil" or "abandoned", but even in these water drips in from the rock's joints through which it percolates.
The Ajanta Caves contain 29 caves in total.
There are caves in many parts of Ireland. For example there are the Ailwee Caves in county Clare and the Dunmore caves in county Kilkenny. Thee are mountains all around Ireland and many caves can be found in them.
59 CAVES
There are 114 Passages in The Holy Quran
Yes. There are MANY caves in Canada.
There are many caves in Australia. Some of the better known ones are the Jenolan Caves, Wellington Caves and Abercrombie Caves. There are many spectacular caves that are not-so-well known throughout Australia. The Nullarbor Plain is a spelunker's paradise.
There are 12 Buddhist (caves 1-12), 17 Hindu (caves 13-29) and 5 Jain (caves 30-34) caves. Total 34 caves.
Yes. The sides of Uluru are literally ridden with caves, both large and small, some little more than fissures. None of the caves extend any depth into the Rock, so Uluru is not a place for spelunkers. However, many of the caves are decorated with ancient indigenous art, and various caves were allocated for specific purposes by the indigenous people when they still lived a traditional lifestyle.
13 major caves are known.